Armed assailants attacked a Tunisian police station and military facilities at dawn

Heavy clashes between Tunisian security forces and Libya-based jihadists killed at least 51 people on Monday near the border between the two countries, Tunisia’s interior ministry said, fueling concerns that Libya’s political chaos is spilling into its more stable neighbor.

Tunisian security forces killed at least 35 jihadists after the extremists launched coordinated morning raids on a military barracks and a police station in the Tunisian town of Ben Guerdane, the interior ministry said in a statement. Ben Guerdane is a...